AMRZ insider buying
2 cluster buysAmrize Ltd · Materials
When two or more insiders at Amrize Ltd buy AMRZ on the open market around the same time, that clustered conviction is one of the highest-signal patterns in SEC filing data. Below is every cluster we've detected in AMRZ plus the full record of qualifying open-market buys, each parsed directly from Form 4 filings and linked back to the source on SEC EDGAR.
Detected clusters
- Mar 6 – May 22, 2026Detected May 22, 2026High conviction6 insidersTotal bought$6.5MMarket cap$29.6B
- Aug 8 – Nov 4, 2025Detected Nov 4, 2025High conviction6 insidersTotal bought$59.4MMarket cap$29.6B
All notable open-market buys in AMRZ
Every open-market Form 4 purchase, newest first. Click an insider to see their full buying record across companies.
| Date | Insider | Shares | Price | Value | Filing |
|---|---|---|---|---|---|
| May 22, 2026 | Forrest Nollaigcluster Chief Mktg & Corp Affairs Off | 2,000 | $50.25 | $100.5K | SEC ↗ |
| May 19, 2026 | Jenisch Jan Philippcluster Director, Chairman & CEO | 7,000 | $49.69 | $347.8K | SEC ↗ |
| May 19, 2026 | Jenisch Jan Philippcluster Director, Chairman & CEO | 3,000 | $49.96 | $149.9K | SEC ↗ |
| May 19, 2026 | Jenisch Jan Philippcluster Director, Chairman & CEO | 3,001 | $49.63 | $148.9K | SEC ↗ |
| May 15, 2026 | Jenisch Jan Philippcluster Director, Chairman & CEO | 13,417 | $49.69 | $666.7K | SEC ↗ |
| May 15, 2026 | Jenisch Jan Philippcluster Director, Chairman & CEO | 8,000 | $49.63 | $397.0K | SEC ↗ |
| May 15, 2026 | Jenisch Jan Philippcluster Director, Chairman & CEO | 7,000 | $49.12 | $343.8K | SEC ↗ |
| Mar 13, 2026 | Gross Mariocluster Chief Supply Chain Officer | 2,000 | $55.39 | $110.8K | SEC ↗ |
| Mar 13, 2026 | Brouwer Roaldcluster Chief Technology Officer | 2,000 | $54.88 | $109.8K | SEC ↗ |
| Mar 12, 2026 | President, Building Materials | 1,000 | $56.90 | $56.9K | SEC ↗ |
| Mar 11, 2026 | Brouwer Roaldcluster Chief Technology Officer | 3,000 | $58.72 | $176.2K | SEC ↗ |
| Mar 11, 2026 | President, Building Materials | 1,000 | $58.91 | $58.9K | SEC ↗ |
| Mar 10, 2026 | Johnston Ian Acluster Chief Financial Officer | 4,250 | $58.94 | $250.5K | SEC ↗ |
| Mar 9, 2026 | Hill Jaimecluster President, Building Materials | 3,184 | $56.34 | $179.4K | SEC ↗ |
| Mar 6, 2026 | Jenisch Jan Philippcluster Director, Chairman & CEO | 60,000 | $58.05 | $3.5M | SEC ↗ |
| Feb 19, 2026 | Chief Financial Officer | 995 | $63.92 | $63.6K | SEC ↗ |
| Feb 19, 2026 | Chief Financial Officer | 205 | $63.91 | $13.1K | SEC ↗ |
| Nov 19, 2025 | Director | 2,000 | $47.34 | $94.7K | SEC ↗ |
| Nov 4, 2025 | Hill Jaimecluster President, Building Materials | 4,000 | $50.69 | $202.8K | SEC ↗ |
| Oct 31, 2025 | Brouwer Roaldcluster Chief Technology Officer | 3,000 | $51.78 | $155.3K | SEC ↗ |
| Oct 30, 2025 | Jenisch Jan Philippcluster Director, Chairman & CEO | 55,000 | $52.88 | $2.9M | SEC ↗ |
| Oct 30, 2025 | Jenisch Jan Philippcluster Director, Chairman & CEO | 55,000 | $52.64 | $2.9M | SEC ↗ |
| Aug 27, 2025 | Brouwer Roaldcluster Chief Technology Officer | 2,000 | $51.88 | $103.8K | SEC ↗ |
| Aug 22, 2025 | President, Building Materials | 500 | $49.59 | $24.8K | SEC ↗ |
| Aug 15, 2025 | Hill Jaimecluster President, Building Materials | 4,000 | $52.00 | $208.0K | SEC ↗ |
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AMRZ insider buying — FAQ
- Are insiders buying AMRZ stock?
- Yes — 13 distinct insiders have bought AMRZ (Amrize Ltd) on the open market, including 2 cluster buys where two or more insiders bought within a rolling window. The most recent qualifying activity was May 26, 2026.
- How much AMRZ stock have insiders bought?
- Insiders have bought a combined $66.6M of AMRZ across 59 open-market purchases, based on SEC Form 4 filings.
- What is an insider cluster buy in AMRZ?
- A cluster buy is two or more distinct Amrize Ltd insiders — officers, directors, or 10% owners — each buying AMRZ on the open market within a rolling window. AMRZ has 2 detected cluster buys to date.
- Where does this AMRZ insider trading data come from?
- Every figure is parsed directly from SEC Form 4 filings on EDGAR, and each purchase on this page links back to its original filing document.
How we track insider buying in AMRZ
We continuously poll SEC EDGAR for new Form 4 filings and parse every open-market purchase (transaction code P). A cluster is recorded when two or more distinct insiders — officers, directors, or 10% owners — each buy AMRZ within a rolling window. We track clusters at every company size, from micro-caps to mega-caps. Every figure on this page traces back to an official filing; open any row to jump straight to the source document. What counts as a cluster buy?
This page is informational and reflects public filing data. It is not investment advice or a recommendation regarding AMRZ.